tz_convert(1) on Linux
The text 7304cb93015b, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
Timezone converter from operating system tz format into libical format used by Orage and several other calander tools.
Flags it lists
-
--exclude -
--help -
--infile -
--limit -
--message -
--norecursive -
--norrule -
--outfile -
--timezone -
--usage -
--version -
-? -
-V -
-c -
-i -
-l -
-m -
-o -
-r -
-t -
-u -
-x